Heba Kadry is an Egyptian mastering engineer who currently resides in Brooklyn, New York. She is best known for her work with Björk, Beach House, Slowdive, The Mars Volta, Neon Indian, Wooden Shjips,
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a39383baa600dc3ce4d9ef4936d28cd2c54447346deb5fb17c0eddedab0df4. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8c5f16ee-c634-48f0-9c29-5de467f2028a.json and https://artists.proofprofile.net/proofs/artist/8c5f16ee-c634-48f0-9c29-5de467f2028a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).